Güncel Gönderiler

Theoretical investigations of the pentaquark states that were recently discovered provide important information on their nature and structure. It is necessary to study the spectroscopic parameters, like masses and residues ...

The LHCb Collaboration recently observed five narrow Omega(0)(c) resonances and measured their masses and widths through the decays Omega(0)(c) -> Xi(+)(c) K-. Motivated by this discovery, and also by the fact that the ...

The electromagnetic properties of the tetraquark state Z(c)(3900) are investigated in the diquark-antidiquark picture and its magnetic and quadrupole moments are extracted. To this end, the light-cone QCD sum rule in ...

Exploration of the resonances Z(c)(3900) and Z(4430) are performed by assuming that they are the ground state and first radial excitation of the same tetraquark with J(P) = 1(+). The mass and current coupling of the Zc(3900) ...

The masses and pole residues of the ground and first radially excited Omega(0)(c) states with spin-parities J(P) = 1/2(+), 3/2(+), as well as P-wave Omega(0)(c) with J(P) = 1/2(-), 3/27(-) are calculated by means of the ...

Investigation of the resonances X(4140) and X(4274), which were recently confirmed by the LHCb Collaboration [1], is carried out by treating them as the color triplet and sextet [cs] [(c) over bar (s) over bar] diquark-antidiquark ...

The mass and residue of the ground-state, as well as the first orbital and radial excitations of the heavy Omega(Q) baryons with Q being b or c quark, for both J = 1/2 and J = 3/2 are calculated by means of the QCD two-point ...

The ground and first excited states of the decuplet baryons are studied using the two-point QCD sum rule approach. The mass and residue of these states are computed and compared with the existing experimental data and other ...

The in-medium sum rules are employed to calculate the shifts in the mass and residue as well as the calar and vector self-energies of the heavy Lambda(Q), Sigma(Q) and Xi(Q) baryons, with Q being b or c quark. The maximum ...

The charged axial-vector J (P) = 1(+) tetraquarks Z(q) = [cq][ (b) over bar(q) over bar] and Z(s) = [cs][ (b) over ar(s) over bar] with the open charm-bottom contents are studied in the diquark-antidiquark model. The masses ...

The mass and meson-current coupling constant of the resonance X(5568), as well as the width of the decay X(5568) -> B-s*pi are calculated by modeling the exotic X(5568) resonance as a diquark-antidiquark state X- b = ...

The mass and meson- current coupling of the diquark- antidiquark states with the quantum numbers J(P) = 0(+) and quark contents Z(q) = [cq] [(b) over bar (q) over bar] and Z(s) = [cs] [(b) over bar(s) over bar] are calculated ...

To better understand the nature and internal structure of the exotic states discovered by many collaborations, more information on their electromagnetic properties and their strong and weak interactions with other hadrons ...

The form factors of the semileptonic chi(b2)(1P) -> B-c(l) over barv decay are calculated by using the QCD sum rule technique. The results obtained are then used to estimate the decay widths of this transition in all lepton ...

We present a study on the impact of scalar leptoquarks on the semileptonic decays of Lambda(b) , Sigma(b) , and Xi(b) . To this end, we calculate the differential branching ratio and lepton forward-backward asymmetry ...

We calculate the mass and residue of the heavy spin-3/2 negative-parity baryons with single heavy bottom or charm quark by use of a two-point correlation function. We use the obtained results to investigate the diagonal ...

The ATLAS experiment has performed extensive searches for the electroweak production of charginos, neutralinos, and staus. This article summarizes and extends the search for electroweak supersymmetry with new analyses ...

A 6.8 nb(-1) sample of pp collision data collected under low-luminosity conditions at root s = 7 TeV by the ATLAS detector at the Large Hadron Collider is used to study diffractive dijet production. Events containing at ...

Charged Higgs bosons heavier than the top quark and decaying via H-+/- -> tb are searched for in proton-proton collisions measured with the ATLAS experiment at root s = 8 TeV corresponding to an integrated luminosity of ...